Side by side

Hamilton Khaki Aviation Khaki Pilot Pioneer Auto ChronovsYema Wristmaster Slim Small Seconds CMM.29

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

9 of 29 specs differ
Diameter
Khaki Aviation Khaki Pilot Pioneer Auto Chrono41mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
Khaki Aviation Khaki Pilot Pioneer Auto Chrono60h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
Khaki Aviation Khaki Pilot Pioneer Auto Chrono100m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
Khaki Aviation Khaki Pilot Pioneer Auto Chrono$1,995
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

5 specs
Category
Chronograph
Dress
Diameter
41mm
39mm
Thickness
16mm
9mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm

Crystal & Dial

1 specs
Dial Color
Beige
Black

Movement

2 specs
Caliber
H-31
Yema CMM.29
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$1,995
$2,249

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Aviation Khaki Pilot Pioneer Auto Chrono

Owners widely praise the Hamilton Khaki Aviation Khaki Pilot Pioneer Auto Chrono for its excellent dial legibility and unique, vintage-inspired design, with some noting its thinness and 72-hour power reserve. Reviewers highlight its charismatic, function-forward military aesthetic and attractive dial execution. The watch is considered a wise starting point for a chronograph under $2,000, with observed accuracy around +/- 4 seconds per day and a 60-hour power reserve. Some owners find the non-screw-down crown limits water confidence, and one reviewer notes the mineral crystal scratches more easily than sapphire. The price is considered a bit punchy by one source. On balance, owners and reviewers rate the Hamilton Khaki Aviation Khaki Pilot Pioneer Auto Chrono highly for its handsome, utilitarian design and value.

Yema Wristmaster Slim Small Seconds CMM.29

Owners widely praise the Yema Wristmaster Slim Small Seconds CMM.29 for its slim 9.5mm case, unique nature-inspired dial, and brushed steel finish. The micro-rotor movement is noted for its 4Hz beat rate and 42-hour power reserve, regulated to -/+ 10 seconds per day. Some owners report concerns regarding the movement and warranty process, while a reviewer questioned the value proposition at its price point and noted minor finishing inconsistencies on a prototype. On balance, the Yema Wristmaster Slim Small Seconds CMM.29 is highly regarded by owners for its distinctive design and comfortable wearability.

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